Short-Cut Math

Short-Cut Math

Can you multiply 362 x .5 quickly in your head? Could you readily calculate the square of 41? How much is 635 divided by 2½? Can 727,648 be evenly divided by 8?

If any of these questions took you more than a few seconds to solve, you need this book. Short-Cut Math is a concise, remarkably clear compendium of about 150 math short-cuts — timesaving tricks that provide faster, easier ways to add, subtract, multiply, and divide.

By using the simple foolproof methods… (more)

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Book Details  


Publisher: Dover Publications (March 23, 2012)

Collection: Dover Books on Mathematics

Parent ISBN: 9780486246116

Page count: 128 pages

Language: English


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